I get a kick out of answering this one because it's a little counterintuitive: you don't actually need to finish any quest to fight greater demons in 'Old School RuneScape'. They are regular slayable monsters scattered through several dungeons and Wilderness spots, and they show up as standard Slayer assignments. So if your goal is simply to access greater demon slayer content, the main gate is your Slayer master and your Slayer level, not a storyline quest.
That said, certain quests make getting to the best greater demon spots way easier. For example, completing 'Fairy Tale II - Cure a Queen' (or the parts needed for fairy ring access) drastically cuts travel time, and finishing 'Desert Treasure' gives you the Ancient Magicks spellbook, which can be useful in some combat setups. Other quest completions that open teleports or shortcuts—anything that makes travel cheaper and safer—are worth doing if you plan to farm them a lot. Personally I prioritize the travel/utility quests first so my slayer trips feel smooth and efficient.
No single quest locks away greater demons — you can kill them right away once you find a spawn or get a Slayer task that names them. In practice, most players care about convenience: quicker routes, better teleports, and safer access to multi-combat areas. For convenience, I value finishing 'Fairy Tale II - Cure a Queen' because fairy rings are a massive time-saver, and 'Desert Treasure' if you like using Ancient Magicks for some of the quicker teleports and combat spells.
Beyond teleport-helping quests, focus on improving Slayer: talk to higher-level Slayer masters when you can and keep an eye on tasks that can be done in safe, quick locations. For me, the combination of decent gear, a reliable teleport network, and chosen Slayer master matters far more than any single quest requirement.
Short and practical: greater demons in 'Old School RuneScape' are not hidden behind quest locks. You access them through Slayer tasks or by finding their spawns in dungeons and the Wilderness. No quest is strictly required to fight them.
That said, if you want to make life easier, completing travel- or teleport-related quests helps a lot—'Fairy Tale II - Cure a Queen' for fairy rings is the go-to, and 'Desert Treasure' is handy for Ancient Magicks users. Gear up, pick a good Slayer master for the task, and focus on making your trips smooth; that's what really improves your kill rate. Personally, once my teleport network is sorted I enjoy farming them way more.
I usually say this bluntly to friends: you don't need to chase any particular quest to access greater demons in 'Old School RuneScape'. They're not gated behind story content. What changes is how convenient and safe your trips will be. So my checklist before I go demon-hunting: get a Slayer assignment, clear any annoying quest locks that prevent teleport or shortcut use, and prepare gear.
Useful quest choices I pick for quality-of-life are the ones that unlock travel tools—'Fairy Tale II - Cure a Queen' for fairy rings is the biggest quality-of-life win, and 'Desert Treasure' opens Ancient Magicks for people who use them. If you want to be thorough, complete nearby mini-quests or city-teleport unlocks so you can hop between banks and demon sites quickly. Once I have that setup, I can chain tasks for hours without wasting runes or time; feels really efficient and satisfying.
2026-02-06 05:49:42
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